As you might have noticed, we are facing a minor header problem regarding BBCodes$^*$. As a result, when these codes are used, different layers of the page overlap one another. And some ugly annoying texts are also placed on the top of the page. This is not a big issue. But it reduces the functionality of the page and some utilities like 'similar topics', 'upload attachment' can't be used for the overlapping.

To prevent this, try not to use BBCodes. Use equivalent latex commands instead. For example, to get the same effect as $$ or $$, use \textbf{} and \textit{} commands, resp. Example: